From patchwork Tue Jun 23 19:58:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 223330 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A9C7C433DF for ; Tue, 23 Jun 2020 20:56:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B08A20724 for ; Tue, 23 Jun 2020 20:56:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592945792; bh=aVQvAqoDRPXw5wPyTnBE2z3xocTyKQd+x9V86cnGcwc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jF6gr3CiVfxauuIZnnpWH8jhpL4cSCcEYcyly/1RnrlLfvxmrRlBP6vJBFEcF5KOM FKvdpqBtDtyN4LmGVH4xAzmRgF5RyAkm+kfMGWsO99hFswnk5ySLY1pTHbDcGNaawd PYZRjxvcyFqnhsIimbeBx2j1hgnBIGSmC8n/jaIw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390295AbgFWUnh (ORCPT ); Tue, 23 Jun 2020 16:43:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:40544 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392537AbgFWUng (ORCPT ); Tue, 23 Jun 2020 16:43:36 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4BE9621883; Tue, 23 Jun 2020 20:43:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592945016; bh=aVQvAqoDRPXw5wPyTnBE2z3xocTyKQd+x9V86cnGcwc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oea1dc6GL7BfdxBe7DoMww25/9mDb6yY2tHIXcO5YyLjNJjeqeLjS4dzJq4Cos1Bg v9JXkz9YqA/Fm7j2b/whHbrocErOmwIL5M/APMB5Molg9in7C3xo6rk932qGRhfjov GtYnhnIPj7YHBICD/fhNcbVa4lUtT7p6CdxEaxBE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Rafael J. Wysocki" , Andy Shevchenko , Stable@vger.kernel.org, Chen Yu , Aaron Brown , Jeff Kirsher Subject: [PATCH 4.19 201/206] e1000e: Do not wake up the system via WOL if device wakeup is disabled Date: Tue, 23 Jun 2020 21:58:49 +0200 Message-Id: <20200623195326.928100772@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200623195316.864547658@linuxfoundation.org> References: <20200623195316.864547658@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chen Yu commit 6bf6be1127f7e6d4bf39f84d56854e944d045d74 upstream. Currently the system will be woken up via WOL(Wake On LAN) even if the device wakeup ability has been disabled via sysfs: cat /sys/devices/pci0000:00/0000:00:1f.6/power/wakeup disabled The system should not be woken up if the user has explicitly disabled the wake up ability for this device. This patch clears the WOL ability of this network device if the user has disabled the wake up ability in sysfs. Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver") Reported-by: "Rafael J. Wysocki" Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Chen Yu Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/e1000e/netdev.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6308,11 +6308,17 @@ static int __e1000_shutdown(struct pci_d struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; - u32 ctrl, ctrl_ext, rctl, status; - /* Runtime suspend should only enable wakeup for link changes */ - u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol; + u32 ctrl, ctrl_ext, rctl, status, wufc; int retval = 0; + /* Runtime suspend should only enable wakeup for link changes */ + if (runtime) + wufc = E1000_WUFC_LNKC; + else if (device_may_wakeup(&pdev->dev)) + wufc = adapter->wol; + else + wufc = 0; + status = er32(STATUS); if (status & E1000_STATUS_LU) wufc &= ~E1000_WUFC_LNKC; @@ -6369,7 +6375,7 @@ static int __e1000_shutdown(struct pci_d if (adapter->hw.phy.type == e1000_phy_igp_3) { e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw); } else if (hw->mac.type >= e1000_pch_lpt) { - if (!(wufc & (E1000_WUFC_EX | E1000_WUFC_MC | E1000_WUFC_BC))) + if (wufc && !(wufc & (E1000_WUFC_EX | E1000_WUFC_MC | E1000_WUFC_BC))) /* ULP does not support wake from unicast, multicast * or broadcast. */